2. 职称英语
  3. But for their generous help, the experiment______completed so quickly.A、shouldn’

But for their generous help, the experiment______completed so quickly.A、shouldn’

游客2023-10-21  44
问题 But for their generous help, the experiment______completed so quickly.
选项 A、shouldn’t be
B、couldn’t have been
C、wasn’t
D、hadn’t
答案 B
解析 要不是他们慷慨相助，试验不可能这么快完成。but for要不是…，位于句首句子用虚拟语气。couldn’t have been本不可能实现但却实现了，虚拟语气。
转载请注明原文地址:https://www.tihaiku.com/zcyy/3116801.html
相关试题推荐
随机试题
最新回复(0)